Merge branch 'master' into menu-resize-hidemenu-resize-hide

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/expand_variables.rb b/lib/expand_variables.rb
new file mode 100644
index 00000000000..7b1533d0d32
--- /dev/null
+++ b/lib/expand_variables.rb
@@ -0,0 +1,17 @@
+module ExpandVariables
+  class << self
+    def expand(value, variables)
+      # Convert hash array to variables
+      if variables.is_a?(Array)
+        variables = variables.reduce({}) do |hash, variable|
+          hash[variable[:key]] = variable[:value]
+          hash
+        end
+      end
+
+      value.gsub(/\$([a-zA-Z_][a-zA-Z0-9_]*)|\${\g<1>}|%\g<1>%/) do
+        variables[$1 || $2]
+      end
+    end
+  end
+end